package demo6;

import java.util.Arrays;

public class Test {
    public static void main(String[] args) {
        Student student1 = new Student("afei",10);
        Student student2 = new Student("lisi",6);
        Student student3 = new Student("zhansan",8);
        Student[] students = new Student[3];
        students[0] = student1;
        students[1] = student2;
        students[2] = student3;

        System.out.println(Arrays.toString(students));
        ageComparator ageComparator = new ageComparator();

        Arrays.sort(students,ageComparator);

        System.out.println(Arrays.toString(students));
    }


    public static void main3(String[] args) {
        Student student1 = new Student("bit",10);
        Student student2 = new Student("tom",6);

        System.out.println("按照年龄");
        ageComparator ageComparator = new ageComparator();
        int ret = ageComparator.compare(student1,student2);
        if( ret > 0) {
            System.out.println("student1 > student2");
        }else if(ret == 0) {
            System.out.println("student1 == student2");
        }else {
            System.out.println("student1 < student2");
        }

        System.out.println("按照名字");
        NameComparator nameComparator = new NameComparator();
        int back = nameComparator.compare(student1,student2);
        if( back > 0) {
            System.out.println("student1 > student2");
        }else if(back == 0) {
            System.out.println("student1 == student2");
        }else {
            System.out.println("student1 < student2");
        }

    }

    public static void bubblesort(Student[] student){
        for(int i = 0; i < student.length - 1; i++){
            for(int j = 0; j < student.length - i - 1; i++){
                if(student[j].compareTo(student[j + 1]) > 0){
                    Student tmp = student[j];
                    student[j] = student[j + 1];
                    student[j + 1] = tmp;
                }
            }
        }
    }

    public static void main2(String[] args) {
        Student student1 = new Student("afei",10);
        Student student2 = new Student("lisi",6);
        Student student3 = new Student("bit",30);
        Student[] students = new Student[3];
        students[0] = student1;
        students[1] = student2;
        students[2] = student3;

        System.out.println(Arrays.toString(students));

        //Arrays.sort(students);
        bubblesort(students);

        System.out.println(Arrays.toString(students));

    }



    public static void main1(String[] args) {
        Student student1 = new Student("afei",10);
        Student student2 = new Student("lisi",6);
        int ret = student1.compareTo(student2);
        if( ret > 0) {
            System.out.println("student1 > student2");
        }else if(ret == 0) {
            System.out.println("student1 == student2");
        }else {
            System.out.println("student1 < student2");
        }
    }
}
